/*
 * @Descripttion: 
 * @version: 
 * @Author: 马琳峰
 * @Date: 2020-09-29 15:39:03
 * @LastEditors: 马琳峰
 * @LastEditTime: 2020-09-29 15:43:02
 */
//support.js 
class Container {
    static of(value) {
           return new Container(value)
    }  constructor(value) {
        this._value = value;
    }
    map(fn) {
        return Container.of(fn(this._value))
    }
}
class Maybe {
    static of(x) {
        return new Maybe(x)
    }
    isNothing(){
        return this._value === null || this._value === undefined
    }
    constructor(x) {
        this._value = x; 
    }
    map(fn) {
        return this.isNothing() ? this : Maybe.of(fn(this._value))
    }
}
module.exports = { Maybe, Container }